{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274758",
    "entityType": "User",
    "nonce": "0xd1a276594522e74960d2127478089aa8424b333f65e726d3b533c4c2e516012d",
    "signature": "0x44f95905ebe8f3e6e605a317bb8634137d24e2fb4076534b8fd9af7241ee9db25c3d6d442911bd6990f4383664ada2964d6d8c469a0b12d74ef98ea1902f9e361c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}